templates/edit_book.html

{% extends "base.html" %}
{% block content %}
<h2>Edit Book</h2>
<div class="card">
<form method="POST">
<label>Title:</label><input name="title" value="{{ book.title }}" required>
<label>Author:</label><input name="author" value="{{ book.author }}" required>
<label>ISBN:</label><input name="isbn" value="{{ book.isbn }}" required>
<label>Category:</label><input name="category" value="{{ book.category }}" required>
<label>Publisher:</label><input name="publisher" value="{{ book.publisher }}" required>
<label>Year:</label><input type="number" name="year" value="{{ book.year }}" required>
<label>Total Copies:</label><input type="number" name="total_copies" value="{{ book.total_copies }}" required>
<label>Shelf No:</label><input name="shelf_no" value="{{ book.shelf_no }}" required>
<button type="submit" class="btn">Update</button>
<a href="{{ url_for('books') }}" class="btn btn-danger">Cancel</a>
</form>
</div>
{% endblock %}